Improvement in extension tables



A. H ERZO G.

Extension-Tables.

lvm-136,243. Patented Feb.25,1873

C Jigj. f $1332.

UNITED STATES PATENT OFFICE,

AUGUST HERZOG, or NEW vente, NQ Y.

IMPROVEMENT IN EXTENSION TABLES.

Specification forming part of Letters Patent No. 136.243, dated February'25, 1873.

proved Extension Table, of which the following is a specification:

Figures l and 2 are bottom views of my improved extension table, showingthe same, respectively, extended and contracted. Figs. 3 'and 4 arevertical longitudinal sections ofthe same, taken, respectively, on thelines C C and K K, Figs. l and 2. Fig. 5 is a vertical transversesection ofthe same on the line C K, Fig. l.

Similar letters of reference indicate correspondin g parts.

This invention relates to a new extension table, whose middle portion isvertically adjustable and made self-elevatin g, so that when the slidingextension leaves, which are above it while the table is contracted, aredrawn apart, such middle portion will spring up and ll the gap betweenthe sliding leaves, thus producing a perfect extended table, and also anunobjectionable form of contracted table. The invention consists in theimprovement of extension tables, as hereinafter described and claimed.

In the drawing, the letters A B represent the extension `or side leavesof the table, that are supported on legs C C in the customary manner,and rigidly connected therewith. Their side rails a a are grooved intoside rails 'b b that connect intimately and rigidly with 'the middleleaf or leaves D. In the drawing but one middle leaf is shown, and wheremore than one are used they are all securelyT fastcned upon the rails bb.

When the extension leaves are pushed against each other, as in Figs. 2and 4, the middle leaf' D is held under them, as clearly shown in Fig.

4, and the rail o is consequently lowered; but

when the leaves A B are drawn apart to their fullest extent the middleleaf D springs up between them, as in Fi g.'3, a spring or springs, d,causing its elevation. The edges of the plate D are rabbeted to fit thesimilarly-shaped edges of the leaves A B, and thus to insure the properappearance of the table.

In constructing the table I prefer tov slot or groove the rails a a andto t into their slots or grooves bars e e, with which a frame, f, is

connected that bears against the` under side of the leaves A B andextends beneath the middle leaf D, as shown. The spring or springs d aresupported on this frame or frames f, and thereby eifect the elevation ofthe leaf D when the space above it is clear of leaves A B.

g is a hook or pin, which I secure to the bar e above mentioned, andwhich, when the table is extended, maybe swung out under the side rail bto lock the middle leaf in its elevated position. Without such lookin gdevice the middle leaf could be pressed down against the spring or spriugs d, which would be objection able.

For extending the table it is only necessary to draw the leaves A Bapart until the leaf D` springs up between them. For contracting them itis necessary to first depress the leaf l) so that itwill be out of theway ot the leaves A B, and then to push the latter together.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- I 1. The combination, with avertically-adjust `ableleaf or leaves, D, of the spring d, arranged about a pin pendenttherefrom, and supported ou a frame, j', as and for the purposedescribed.

2. The combination, with leaf or leaves D, of the hook g, arranged tolock on the rail b, as

and for the purpose set forth.

AUGUST HERZOG.

Witnesses A. V. BRIEsEN, T. B. MosHER.

